Researchers in Sweden have finally succeeded in synthesizing Trinitramid, a powerful chemical fuel with 20-30% more energy density than the best rocket fuels today, as well as environmentally friendly emissions characteristics:

"Theoretical calculations by Montgomery and Michels showed that the compound was stable."

What's the rule of thumb again? I'd heard that with each 10% gain in fuel efficiency, you can double your payload mass. So does that mean this stuff could multiply payload masses by upto a factor of 8??

The article talks about solid rocket fuels; while it may be better than current solid fuels, that doesn't mean that it will be better than a liquid rocket. For example, the Shuttle SRBs have a vacuum ISP of 268s (they use ammonium perchlorate as the oxidiser, which provides the chlorine atoms for the hydrochloric acid that the article talks about). A 30% increase to that gives a 350s ISP. That's respectable, but the Shuttle's main engines (liquid hydrogen/liquid oxygen) beat that handily with a figure of 450 s. The SpaceX Merlin engine (which would power the liquid-fuel strap-on boosters in the Falcon 9 Heavy, it's really just three Falcon 9 first stages side-by-side) has a vacuum ISP of 305s, so this new fuel may be competitive against RP1/LOX for that type of application, but of course liquid propellant rockets have other advantages as well.

Then there's the question of stability, and of mass production. These chemical analysis machines are really sensitive, so "enough to be detected" is probably a very tiny amount in a solution. Making enough to fill an SRB is something else again.

So I'd say that this looks somewhat promising, but it's no magic, and in any case a lot of research is needed before we see something take off on a plume of trinitramid.

_________________Say, can you feel the thunder in the air? Just like the moment ’fore it hits – then it’s everywhereWhat is this spell we’re under, do you care? The might to rise above it is now within your sphereMachinae Supremacy – Sid Icarus

I don't know if it's available for free, but it seems so. That file compares (among other things) trinitramide to LOX when using LH2 or hydrazine as fuel (but not with kerosene).edit: not confused anymore. isp is stated as N*s/Kg, divide by 9.81 to get isp in seconds.